Jack connection for loom shedding mechanisms.



v T. GILSON. JAGK' CONNECTION FOR LOOM S HEDDING MECHANISMS.

APPLICATION FILED FBBZO, 1913.

1,085,565, Patented Jan. 27, 1914.

. NVENTOR COLUMBIA PLANOORAPH 50 WASHINGTON, D- C- Providence,

THOMAS GILSON, OF PROVIDENCE, RHODE ISLAND.

JACK CONNECTION FOR LOOM SHEDDING'MECHANISMS.

Specification of Letters Patent.

Patented Jan. 27, 1914.

Application filed February 20, 1913. Serial N 0. 749,563.

To all whom it may concern.

Be it known that I, THOMAS GILSON, a citizen of the United States,residing at in the county of Providence and State of Rhode Island, haveinvented a new and useful Improvement in Jack Connect-ions for LoomShedding Mechanisms, of which the following is a specification.

This invention relates to certain new and useful improvements in jackconnections for loom shedding mechanisms, and the object thereof is toprovide means for connecting the jacks and the harnesses, so that shouldthe straps that are connected to the harnesses break, the aforementionedmeans will be held from contacting with the jacks, thereby preventinginjury to or breakage of the parts.

In the drawings: Figure 1 is a side elevation of a portion of a loomshowing the present invention applied thereto, the latter being partlybroken away and shown in section. Fig. 2 is a perspective view of theinvention. Fig. 3 is a vertical sectional view of Fig. 2, the hook beingshown in fragment.

The invention is ordinarily used in connection with the lower notchedarm A of the jack, the number of jacks used depending upon the number ofharnesses used in the loom.

In accordance with the invention a hollow casing 1 is employed whichlatter preferably consists of a pair of spaced side plates 2 which areconnected at their upper ends by a cross-piece 3. The lower end portionsof the side plates 2 are flared and connected at their outer sides bymeans of a pair of spaced studs 4:. A transverse pin 5 is con nected tothe side plates 2 and located at a point above the studs 4 and in thecenter of the space between said studs. A wire arm or member 6 is formedwith a hook 7 on its upper end, which hook embraces the pin 5 so as tohave pivotal movement with relation thereto, the pivotal movements ofthe wire 6 being restricted by engagement with the studs 4:, whichlatter thereby perform a. dual function, namely, connecting the sideplates at their lower ends and limiting the pivotal movements of thewire 6, the latter for a purpose to be described.

The casing 1 is placed on the arm A by inserting the latter in the spacebetween the side plates 2 whereupon the substantially \l-shaped bottom 3of the cross piece 3 is moved to engage in a selected notch of the armA. The lower end of the wire arm or member 6 is provided with a hook 8to which is connected a strap B that connects with the lower portion ofthe harness of a loom. Should one of the straps B break, the wire cannotfly up, due to the presence of the studs 4, as it frequently does intoand among the jacks, causing breakage and injury to the parts.

Having thus described my invention, I claim as new and desire to secureby Letters Patent 1. In combination with the notched arm of the jack andthe strap connected to the harness, a casing composed of a pair ofspaced side plates, a cross-piece connecting the upper ends of saidplates and having a V-shaped lower side for engagement in one of thenotches of said arm, the lower end portions of said plates being flared,a pair of spaced studs connecting the lower ends of said plates, atransverse pin connected to said plates and disposed above the studs inthe center of the space between the latter, a wire member having a hookengaged with said pin and having its lower end extending down throughthe space between said studs and having its pivotal movements restrictedby the latter, and a hook on the lower end of said wire member forengagement with the strap.

2. In combination with the arm of they jack and the strap connected tothe harness, an element supported from said arm, a member having itsupper end directly and positively pivoted to the element, means borne bythe element .to restrict outward movement of said member relative tosaid element in case of breakage of the strap, and means to connect thelower end of said member to the strap.

3. In combination with the arm of the jack and the strap connected tothe harness, a pair of spaced side members having an element at theirtop and a pair of spaced elements at their bottoms, the jack arm beingreceived in the space between said members and engaged with said topelement, and a connection leading from the strap and directly pivoted tosaid side members in the space therebetween, said connection having itsoutward movements limited by engagement with the elements at the bottomof the side members.

4. In combination with the arm of the In testimony whereof I have signedmy ack end the strap connected to the harness, name to thisspecificationin the presence of a device connected to the ack arm, a memtwosubscribing Witnesses.

her directly and positively pivoted to said THOMAS GILSON. 5 device andconnected to the strap and means Witnesses:

to restrict movement of said member relative ADA E. HAGERTY,

to the device should the strap break. J. A. MILLER.

Copies of this patent may be obtained for five cents each, by addressingthe "Commissioner of Patents,

Washington, D. G.

